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RoboLearn
AI Programmable Robot Arm based on STM32F4
STEM robot arm that teaches robotics fundamentals through visual programming and AI-powered object sorting.
Position Repeatability
±0.5mm
Payload
500g
RoboLearn
Client
An educational robotics company developing a low-cost desktop robot arm for middle school and high school STEM curricula.
Challenge
Building a 4-DOF robot arm under $200 that is precise enough for pick-and-place tasks, safe for classroom use, and programmable through both visual blocks and Python.
Product Concept & Architecture
An STM32F407 MCU handles real-time motion control (trajectory planning, stepper motor drivers). An ESP32-S3 co-processor runs a camera for object detection.
Engineering Solution
The STM32F407 runs FreeRTOS with a custom trajectory planner implementing trapezoidal velocity profiles. Inverse kinematics is computed onboard for all 4 DoF. The ESP32-S3 runs a quantized MobileNet SSD that detects colored blocks and sends pick coordinates to the STM32 via SPI. Safety limits are enforced in hardware.
Result
±0.5mm repeatability. $189 BOM cost. Deployed in 300+ schools.
Deep Tech FAQ
What makes the AI Programmable Robot Arm based on STM32F4 unique?+
The AI Programmable Robot Arm based on STM32F4 leverages custom hardware and edge AI to deliver industry-leading performance and efficiency.
What are the core technical benefits?+
Key benefits include low power consumption, real-time processing, robust connectivity, and a compact form factor tailored for deployment.
Can this architecture be adapted for other use cases?+
Absolutely. The underlying methodology is modular and can be retargeted for various applications with minimal redesign.
Project Profile
Services Delivered
Hardware DesignEmbedded Software
Core Technologies
Embedded LinuxComputer VisionNPU Acceleration
Silicon & Vendors
STMicroelectronicsEspressif
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